Evidence map›Paper›PMID 33932338›Full record

ArticleCell2021

Vertebrate cells differentially interpret ciliary and extraciliary cAMP.

Melissa E Truong, Sara Bilekova, Semil P Choksi, Wan Li, Lukasz J Bugaj, Ke Xu, Jeremy F Reiter

Open access · bronzeAbstract read
In one paragraph

Article in Cell, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 84 papers.

0numbers the graph read from it
0cells of the map it votes in
84citing papers in PubMed
7.1field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

84 citing papers in PubMed, 115 citations in OpenAlex.

  1. Primary cilia: sensors of biliary homeostasis and disease.Nature reviews. Gastroenterology & hepatology · 2026
    Review
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  10. Primary cilia and neural computation.Journal of biomedical science · 2026
    Review
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  15. Review
  16. Article
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  18. Design principles of ciliary signaling.Journal of cell science · 2025
    Review
  19. Article
  20. Review

24 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 4 institutions in 2 countries.

Melissa E TruongDepartment of Biochemistry and Biophysics, Cardiovascular Research Institute, University of California, San Francisco, San Francisco, CA 94158, USA.
Sara BilekovaDepartment of Biochemistry and Biophysics, Cardiovascular Research Institute, University of California, San Francisco, San Francisco, CA 94158, USA; Ludwig-Maximilians-Universität München, Munich 80539, Germany.
Semil P ChoksiDepartment of Biochemistry and Biophysics, Cardiovascular Research Institute, University of California, San Francisco, San Francisco, CA 94158, USA.
Wan LiDepartment of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA.
Lukasz J BugajDepartment of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA.
Ke XuDepartment of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA; Chan Zuckerberg Biohub, San Francisco, San Francisco, CA 94158, USA.
Jeremy F ReiterDepartment of Biochemistry and Biophysics, Cardiovascular Research Institute, University of California, San Francisco, San Francisco, CA 94158, USA; Chan Zuckerberg Biohub, San Francisco, San Francisco, CA 94158, USA. Electronic address: jeremy.reiter@ucsf.edu.
University of California, San Francisco · USChan Zuckerberg Initiative (United States) · USUniversity of California, Berkeley · USUniversity of Pennsylvania · US

Funding

UCSF Nutrition Obesity Research CenterP30DK098722 · NIDDK · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI CHRISTIAN VAISSE · 2015 to 2026
$14.6M
Hedgehog signaling at the cell's antenna: Smoothened and the primary ciliumR01AR054396 · NIAMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI Jeremy F Reiter · 2007 to 2026
$9.0M
PREDOCTORAL TRAINING IN DEVELOPMENTAL BIOLOGYT32HD007470 · NICHD · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI Todd Nystul · 1994 to 2026
$7.7M
Obesity in Ciliopathies: How Neuronal Primary Cilia Control AppetiteR01DK106404 · NIDDK · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI REITER, JEREMY F, VAISSE, CHRISTIAN · 2016 to 2025
$6.6M
Intracellular phase separation at the nanoscale: a functional super-resolution approachDP2GM132681 · NIGMS · UNIVERSITY OF CALIFORNIA BERKELEY · PI XU, KE · 2018 to 2018
$2.4M
Transition zone control of ciliary signalingR01DE029454 · NIDCR · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI REITER, JEREMY F · 2019 to 2022
$2.3M
NIAMS NIH HHS R01 AR054396NICHD NIH HHS T32 HD007470NIDCR NIH HHS R01 DE029454NIDDK NIH HHS P30 DK098722NIDDK NIH HHS R01 DK106404NIGMS NIH HHS DP2 GM132681
6 · The paper itself

Abstract

Hedgehog pathway components and select G protein-coupled receptors (GPCRs) localize to the primary cilium, an organelle specialized for signal transduction. We investigated whether cells distinguish between ciliary and extraciliary GPCR signaling. To test whether ciliary and extraciliary cyclic AMP (cAMP) convey different information, we engineered optogenetic and chemogenetic tools to control the subcellular site of cAMP generation. Generating equal amounts of ciliary and cytoplasmic cAMP in zebrafish and mammalian cells revealed that ciliary cAMP, but not cytoplasmic cAMP, inhibited Hedgehog signaling. Modeling suggested that the distinct geometries of the cilium and cell body differentially activate local effectors. The search for effectors identified a ciliary pool of protein kinase A (PKA). Blocking the function of ciliary PKA, but not extraciliary PKA, activated Hedgehog signal transduction and reversed the effects of ciliary cAMP. Therefore, cells distinguish ciliary and extraciliary cAMP using functionally and spatially distinct pools of PKA, and different subcellular pools of cAMP convey different information.

Indexed as

AnimalsCell LineCiliaCyclic AMPCyclic AMP-Dependent Protein KinasesCytoplasmHedgehog ProteinsNeuronsOptogeneticsReceptors, G-Protein-CoupledSignal TransductionZebrafishCyclic AMPCyclic AMP-Dependent Protein KinasesHedgehog ProteinsReceptors, G-Protein-CoupledcAMPchemogeneticsdevelopmentG protein-coupled receptorHedgehog signalingoptogeneticsprimary ciliaprotein kinase Asignal transduction

Identifiers

PMID33932338
PMCPMC8450001
OpenAlexW3158070080

What OpenQuestion holds

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Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.